Hull for vessels



(No Model.)

G. T. BREWER.

. HULL FOR vEssBLs. No. 527,657. Patented Oct. 16, 1894.

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UNITED STATES PATENT OFFICE.

' I HULL FOR VESSELS.

SPECIFICATION forming part of Letters Patent No. 527,657, dated October 16, 1 894.

Application filed February 2, 1892- Serial No. 420,028. (No model.)

To all whom it may concern.-

Be it known that I, GILBERT T. BREWER, of Hoboken, Hudson county, New Jersey, have invented new and useful Improvements in Hulls for Vessels, of which the following is a specification.

My invention consists in an improved construction of hulls of vessels comprising a lower narrow deep draft section and a superimposed wide shallow section, as hereinafter fully described reference being made to the accompanying drawings,'in which- Figure 1, is a side elevation of the hull of a vessel constructed in accordance with my invention. Fig. 2, is a plan view. Fig. 3, is a longitudinal sectional elevation. Fig. 4, is a transverse section on line w 00, Fig. 3, and Fig. 5 is a front elevation.

The essential purpose of my invention is to provide for securing the greatest speed attainable together with the greatest attainable space proportionately to the size of the vessel for the convenience of passengers in yachts and other vessels to be mainly or wholly used for passenger service. To this end I provide the short narrow deep draft lower hull a, with the superimposed long wide shallow hull b, which are joined one upon the other, with the excess of the length of the upper section forming a plain flat or approximately flat bottom overhanging at the stern of the lower section the proportions be ing such that the length of the overhang of the upper section is not quite equal to the length of the lower section, and the width of the top of the lower section is about half of the width of the bottom of the upper section, which overhangs the sides of the lower section its entire length. It is intended that the floating capacity of the lower section shall be just about what is necessary for carrying the weight of machinery, water, fuel, &c., in a steam yacht, or the rigging of a sailing vessel, while the flotation of the upper section will only be that of itself and the passengers. This form of hull has decided advantages over the narrow deep draft model of ordinary form usuallyadopted for speed,in that while that portion of the hull that floats the weight of machinery is of the preferred narrow deep draft type, the part appropriated for passengers is much more roomy for a given capacity than the other affords, and its draft of water is slight as compared with what it would be in the ordinary flat bottom of like capacity,

and it also has decided advantages over the wide shallow model of ordinary form in that it is capable of carrying much more weight of propelling machinery with safety in the deep draft part than can be carried in the all shallow hull.

My improved form of hull enables the length of the overhang of the stern to be greatly increased, which has been found of late to be of great utility in preventing the sinking of'the stern so much in very high speed screw propeller yachts.

For passenger service large breadth of space is required but not so large floating capacity as in freight ships nor is deep draft required.

s It will be seen that with the narrow deep draft portion of my model for carrying the machinery, greater stability is secured than can be had in the all fiat bottom form, and at the same time the wide upper part for space is secured with very light draft both greatly favoring speed, the one by its narrow breadth, and the other by its slight draft.

I aware of the commonform of overhang at the stern, the rest of the hull forward being of the ordinary shape in which the sides and bottom merge in regular curves and I do not claim such overhang except in combination with the overhanging sides.

I claim- The hull of a vessel comprising the short narrow deep draft lower section and the superimposed long wide shallow section joined one upon another, the excess of the length of the upper section forming a plain bottomed overhang at the stern of the lower section and the excess of the breadth of the upper section likewise overhanging the sides ofthe lower section, substantially as described.

In testimony that I' claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 20th day of November, 1891.

GILBERT T. BREWER.

Witnesses:

W. J. MORGAN, W. B. EARLL. 

